//------------------------------------------------------------------------------
//  此代码版权（除特别声明或在XREF结尾的命名空间的代码）归作者本人若汝棋茗所有
//  源代码使用协议遵循本仓库的开源协议及附加协议，若本仓库没有设置，则按MIT开源协议授权
//  CSDN博客：https://blog.csdn.net/qq_40374647
//  哔哩哔哩视频：https://space.bilibili.com/94253567
//  Gitee源代码仓库：https://gitee.com/RRQM_Home
//  Github源代码仓库：https://github.com/RRQM
//  API首页：https://touchsocket.net/
//  交流QQ群：234762506
//  感谢您的下载和使用
//------------------------------------------------------------------------------

using System.Collections.Generic;
using System.Diagnostics;
using System.Threading.Tasks;

namespace TouchSocket.Core;

/// <summary>
/// 插件事件类
/// </summary>
public class PluginEventArgs : TouchSocketEventArgs
{
    [DebuggerBrowsable(DebuggerBrowsableState.Never)]
    private bool m_end = true;

    [DebuggerBrowsable(DebuggerBrowsableState.Never)]
    private int m_index;

    [DebuggerBrowsable(DebuggerBrowsableState.Never)]
    private List<PluginEntity> m_pluginEntities;

    [DebuggerBrowsable(DebuggerBrowsableState.Never)]
    private object m_sender;

    [DebuggerBrowsable(DebuggerBrowsableState.Never)]
    private IResolver m_resolver;

    /// <summary>
    /// 由使用者自定义的状态对象。
    /// </summary>
    public object State { get; set; }

    /// <summary>
    /// 执行的插件数量。
    /// </summary>
    public int Count { get; private set; }

    /// <summary>
    /// 调用下一个插件。
    /// </summary>
    /// <returns></returns>
    public Task InvokeNext()
    {
        if (this.m_end || this.Handled)
        {
            return EasyTask.CompletedTask;
        }

        if (this.m_pluginEntities.Count > this.m_index)
        {
            this.Count++;
            return this.m_pluginEntities[this.m_index++].Run(this.m_resolver, this.m_sender, this);
        }
        else
        {
            this.m_end = true;
            return EasyTask.CompletedTask;
        }
    }

    internal void LoadModel(List<PluginEntity> pluginEntities, object sender, IResolver resolver)
    {
        this.m_resolver = resolver;
        this.m_sender = sender;
        this.m_pluginEntities = pluginEntities;
        this.m_end = false;
        this.m_index = 0;
    }
}